EP 3370468 A1 20180905 - ENHANCED OVERLAID CODE DIVISION MULTIPLE ACCESS (CDMA)
Title (en)
ENHANCED OVERLAID CODE DIVISION MULTIPLE ACCESS (CDMA)
Title (de)
VERBESSERTES ÜBERLAGERTES CDMA
Title (fr)
ACCÈS MULTIPLE PAR RÉPARTITION DE CODE SUPERPOSÉ AMÉLIORÉ (CDMA)
Publication
Application
Priority
- US 201562174249 P 20150611
- EP 15828900 A 20151224
- US 2015000355 W 20151224
Abstract (en)
A base station can obtain channel quality conditions for mobile devices in a scheduling interval. The base station can identify a channel quality, a target transmission scheme, and a transmission power level for each of the mobile devices. The base station can assign a unique orthogonal CDMA code. The base station can force the mobile devices to transmit K repeated bursts of uplink data such that each of the mobile devices has a rotated phase shift based on the unique orthogonal CDMA code assigned to each of the mobile devices with each of the mobile devices multiplexed on a same physical channel using an overlaid CDMA operation. The base station can process K repeated bursts that are multiplexed on the same physical channel using the overlaid CDMA operation. The base station can separate the mobile devices according to the unique orthogonal CDMA code and use in-phase (I) and quadrature-phase (Q) (IQ) accumulation according to combine the K repeated bursts.
IPC 8 full level
H04W 72/04 (2009.01); H04J 13/00 (2011.01)
CPC (source: CN EP US)
H04J 13/0003 (2013.01 - CN EP US); H04W 52/241 (2013.01 - CN EP US); H04W 72/0446 (2013.01 - CN EP US); H04W 74/0841 (2013.01 - CN EP US)
Citation (search report)
- [A] US 2011268069 A1 20111103 - SONG KUK-JIN [KR], et al
- [X] ERICSSON LM: "EC-GSM, Overlaid CDMA for extended coverage", vol. TSG GERAN, no. Vilnius, Lithuania; 20150525 - 20150528, 22 May 2015 (2015-05-22), XP050977367, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/GERAN/Docs/> [retrieved on 20150522]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016200358 A1 20161215; CN 107667562 A 20180206; CN 107667562 B 20211001; EP 3308584 A1 20180418; EP 3370468 A1 20180905; EP 3370468 B1 20230222; FI 3370468 T3 20230406; HK 1249689 A1 20181102; JP 2018524846 A 20180830; JP 6794376 B2 20201202; PL 3370468 T3 20230424; US 10581549 B2 20200303; US 11050504 B2 20210629; US 2018109346 A1 20180419; US 2020313785 A1 20201001
DOCDB simple family (application)
US 2015000355 W 20151224; CN 201580079862 A 20151224; EP 15828900 A 20151224; EP 18166338 A 20151224; FI 18166338 T 20151224; HK 18108885 A 20180709; JP 2017559368 A 20151224; PL 18166338 T 20151224; US 201515573377 A 20151224; US 202016807639 A 20200303